Send email using MIME format

You can send emails in MIME (Multipurpose Internet Mail Extensions) format over the API.

MIME gives you greater flexibility when structuring messages, making it ideal for advanced use cases such as:

• Custom message formatting and headers
• Embedding inline images within the email body
• Combining plain text and HTML content
• Adding multiple file attachments

MIME is especially useful when you need full control of your email’s structure beyond standard parameters.

For details on implementation, request format, required headers, and examples, see the Send MIME Email (opens in a new tab) API endpoint.